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Diffstat (limited to 'src/tools/tor-fw-helper/tor-fw-helper-natpmp.c')
-rw-r--r--src/tools/tor-fw-helper/tor-fw-helper-natpmp.c240
1 files changed, 0 insertions, 240 deletions
diff --git a/src/tools/tor-fw-helper/tor-fw-helper-natpmp.c b/src/tools/tor-fw-helper/tor-fw-helper-natpmp.c
deleted file mode 100644
index 6369966869..0000000000
--- a/src/tools/tor-fw-helper/tor-fw-helper-natpmp.c
+++ /dev/null
@@ -1,240 +0,0 @@
-/* Copyright (c) 2010, Jacob Appelbaum, Steven J. Murdoch.
- * Copyright (c) 2010-2015, The Tor Project, Inc. */
-/* See LICENSE for licensing information */
-
-/**
- * \file tor-fw-helper-natpmp.c
- * \brief The implementation of our NAT-PMP firewall helper.
- **/
-
-#include "orconfig.h"
-#ifdef NAT_PMP
-#ifdef _WIN32
-#define STATICLIB
-#endif
-#include <stdint.h>
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-#ifndef _WIN32
-#include <arpa/inet.h>
-#endif
-
-// debugging stuff
-#include <assert.h>
-
-#include "compat.h"
-
-#include "tor-fw-helper.h"
-#include "tor-fw-helper-natpmp.h"
-
-/** This hooks NAT-PMP into our multi-backend API. */
-static tor_fw_backend_t tor_natpmp_backend = {
- "natpmp",
- sizeof(struct natpmp_state_t),
- tor_natpmp_init,
- tor_natpmp_cleanup,
- tor_natpmp_fetch_public_ip,
- tor_natpmp_add_tcp_mapping
-};
-
-/** Return the backend for NAT-PMP. */
-const tor_fw_backend_t *
-tor_fw_get_natpmp_backend(void)
-{
- return &tor_natpmp_backend;
-}
-
-/** Initialize the NAT-PMP backend and store the results in
- * <b>backend_state</b>.*/
-int
-tor_natpmp_init(tor_fw_options_t *tor_fw_options, void *backend_state)
-{
- natpmp_state_t *state = (natpmp_state_t *) backend_state;
- int r = 0;
-
- memset(&(state->natpmp), 0, sizeof(natpmp_t));
- memset(&(state->response), 0, sizeof(natpmpresp_t));
- state->init = 0;
- state->protocol = NATPMP_PROTOCOL_TCP;
- state->lease = NATPMP_DEFAULT_LEASE;
-
- if (tor_fw_options->verbose)
- fprintf(stderr, "V: natpmp init...\n");
-
- r = initnatpmp(&(state->natpmp), 0, 0);
- if (r == 0) {
- state->init = 1;
- fprintf(stderr, "V: natpmp initialized...\n");
- return r;
- } else {
- fprintf(stderr, "V: natpmp failed to initialize...\n");
- return r;
- }
-}
-
-/** Tear down the NAT-PMP connection stored in <b>backend_state</b>.*/
-int
-tor_natpmp_cleanup(tor_fw_options_t *tor_fw_options, void *backend_state)
-{
- natpmp_state_t *state = (natpmp_state_t *) backend_state;
- int r = 0;
- if (tor_fw_options->verbose)
- fprintf(stderr, "V: natpmp cleanup...\n");
- r = closenatpmp(&(state->natpmp));
- if (tor_fw_options->verbose)
- fprintf(stderr, "V: closing natpmp socket: %d\n", r);
- return r;
-}
-
-/** Use select() to wait until we can read on fd. */
-static int
-wait_until_fd_readable(tor_socket_t fd, struct timeval *timeout)
-{
- int r;
- fd_set fds;
-
-#ifndef WIN32
- if (fd >= FD_SETSIZE) {
- fprintf(stderr, "E: NAT-PMP FD_SETSIZE error %d\n", fd);
- return -1;
- }
-#endif
-
- FD_ZERO(&fds);
- FD_SET(fd, &fds);
- r = select(fd+1, &fds, NULL, NULL, timeout);
- if (r == -1) {
- fprintf(stderr, "V: select failed in wait_until_fd_readable: %s\n",
- tor_socket_strerror(tor_socket_errno(fd)));
- return -1;
- }
- /* XXXX we should really check to see whether fd was readable, or we timed
- out. */
- return 0;
-}
-
-int
-tor_natpmp_add_tcp_mapping(uint16_t internal_port, uint16_t external_port,
- int is_verbose, void *backend_state)
-{
- int r = 0;
- int x = 0;
- int sav_errno;
- natpmp_state_t *state = (natpmp_state_t *) backend_state;
-
- struct timeval timeout;
-
- if (is_verbose)
- fprintf(stderr, "V: sending natpmp portmapping request...\n");
- r = sendnewportmappingrequest(&(state->natpmp), state->protocol,
- internal_port,
- external_port,
- state->lease);
- if (is_verbose)
- fprintf(stderr, "tor-fw-helper: NAT-PMP sendnewportmappingrequest "
- "returned %d (%s)\n", r, r==12?"SUCCESS":"FAILED");
-
- do {
- getnatpmprequesttimeout(&(state->natpmp), &timeout);
- x = wait_until_fd_readable(state->natpmp.s, &timeout);
- if (x == -1)
- return -1;
-
- if (is_verbose)
- fprintf(stderr, "V: attempting to readnatpmpreponseorretry...\n");
- r = readnatpmpresponseorretry(&(state->natpmp), &(state->response));
- sav_errno = tor_socket_errno(state->natpmp.s);
-
- if (r<0 && r!=NATPMP_TRYAGAIN) {
- fprintf(stderr, "E: readnatpmpresponseorretry failed %d\n", r);
- fprintf(stderr, "E: errno=%d '%s'\n", sav_errno,
- tor_socket_strerror(sav_errno));
- }
-
- } while (r == NATPMP_TRYAGAIN);
-
- if (r != 0) {
- /* XXX TODO: NATPMP_* should be formatted into useful error strings */
- fprintf(stderr, "E: NAT-PMP It appears that something went wrong:"
- " %d\n", r);
- if (r == -51)
- fprintf(stderr, "E: NAT-PMP It appears that the request was "
- "unauthorized\n");
- return r;
- }
-
- if (r == NATPMP_SUCCESS) {
- fprintf(stderr, "tor-fw-helper: NAT-PMP mapped public port %hu to"
- " localport %hu liftime %u\n",
- (state->response).pnu.newportmapping.mappedpublicport,
- (state->response).pnu.newportmapping.privateport,
- (state->response).pnu.newportmapping.lifetime);
- }
-
- return (r == NATPMP_SUCCESS) ? 0 : -1;
-}
-
-/** Fetch our likely public IP from our upstream NAT-PMP enabled NAT device.
- * Use the connection context stored in <b>backend_state</b>. */
-int
-tor_natpmp_fetch_public_ip(tor_fw_options_t *tor_fw_options,
- void *backend_state)
-{
- int r = 0;
- int x = 0;
- int sav_errno;
- natpmp_state_t *state = (natpmp_state_t *) backend_state;
-
- struct timeval timeout;
-
- r = sendpublicaddressrequest(&(state->natpmp));
- fprintf(stderr, "tor-fw-helper: NAT-PMP sendpublicaddressrequest returned"
- " %d (%s)\n", r, r==2?"SUCCESS":"FAILED");
-
- do {
- getnatpmprequesttimeout(&(state->natpmp), &timeout);
-
- x = wait_until_fd_readable(state->natpmp.s, &timeout);
- if (x == -1)
- return -1;
-
- if (tor_fw_options->verbose)
- fprintf(stderr, "V: NAT-PMP attempting to read reponse...\n");
- r = readnatpmpresponseorretry(&(state->natpmp), &(state->response));
- sav_errno = tor_socket_errno(state->natpmp.s);
-
- if (tor_fw_options->verbose)
- fprintf(stderr, "V: NAT-PMP readnatpmpresponseorretry returned"
- " %d\n", r);
-
- if ( r < 0 && r != NATPMP_TRYAGAIN) {
- fprintf(stderr, "E: NAT-PMP readnatpmpresponseorretry failed %d\n",
- r);
- fprintf(stderr, "E: NAT-PMP errno=%d '%s'\n", sav_errno,
- tor_socket_strerror(sav_errno));
- }
-
- } while (r == NATPMP_TRYAGAIN );
-
- if (r != 0) {
- fprintf(stderr, "E: NAT-PMP It appears that something went wrong:"
- " %d\n", r);
- return r;
- }
-
- fprintf(stderr, "tor-fw-helper: ExternalIPAddress = %s\n",
- inet_ntoa((state->response).pnu.publicaddress.addr));
- tor_fw_options->public_ip_status = 1;
-
- if (tor_fw_options->verbose) {
- fprintf(stderr, "V: result = %u\n", r);
- fprintf(stderr, "V: type = %u\n", (state->response).type);
- fprintf(stderr, "V: resultcode = %u\n", (state->response).resultcode);
- fprintf(stderr, "V: epoch = %u\n", (state->response).epoch);
- }
-
- return r;
-}
-#endif
-